a hockey stick has a mechanical advantage of 4. if the effort arm(which is the distance between the fulcrum and your pushing hand-effort)is 25cm long, how long is the stick? if your hand is pushing at a speed of 20km/h, how fast will the puck move?

Answer 1

the answer is 2million. i hope i was fast enough to help you
p.s you asked this question before i was born